Ann-Marie Lobo-Chan, M.D.
NPI 1710046818 · Ophthalmology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann-Marie Lobo-Chan, M.D. is a Ophthalmology Physician provider in Chicago, IL (NPI 1710046818).
Provider details
- NPI number
- 1710046818
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036.138619 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
236 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 75 | $69 |
| Imaging of Retina92134 | 73 | $25 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $101 |
| Established Patient Complete Exam of Visual System92014 | 26 | $76 |
Typical Medicare-allowed amounts for these services range $25–$101 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 82 | 27 |
| Prednisone | 30 | — |
| Brimonidine Tartrate | 27 | — |
| Dorzolamide Hcl | 27 | — |
| Difluprednate | 19 | — |
| Latanoprost | 18 | — |
| Erythromycin Basebrand: Erythromycin | 17 | — |
| Methotrexate Sodiumbrand: Methotrexate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-06
- Last updated
- 2018-05-07
Frequently asked questions
- What is Ann-Marie Lobo-Chan's NPI number?
- Ann-Marie Lobo-Chan's National Provider Identifier (NPI) is 1710046818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann-Marie Lobo-Chan's specialty?
- Ann-Marie Lobo-Chan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Ann-Marie Lobo-Chan located?
- Ann-Marie Lobo-Chan's practice location on file with NPPES is 1855 W Taylor St, Chicago, IL 60612-7242.
- What is Ann-Marie Lobo-Chan's phone number?
- The practice phone number listed in the NPPES registry for Ann-Marie Lobo-Chan is (312) 996-6660.
- Does Ann-Marie Lobo-Chan accept Medicare?
- Ann-Marie Lobo-Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann-Marie Lobo-Chan's NPI active?
- Yes — Ann-Marie Lobo-Chan's NPI (1710046818) is active in the NPPES registry as of the last update on 2018-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.